CHE 111 C3--Stoichiometry Question Preview (ID: 9356)


This Game Reviews Topics Covered In Chapter 3 Of Your Text--stoichiometry. TEACHERS: click here for quick copy question ID numbers.

CO2 + CaO = CaCO3 is an example of which reaction type?
a) combination
b) decomposition
c) combustion
d) displacement

Is this reaction balanced? C4H10 + 13 O2 = 4 CO2 + 5 H2O
a) yes
b) no
c)
d)

What is the % O in NaNO2?
a) 32%
b) 23%
c) 20%
d) 46%

How many H atoms are in 3 moles of NH3?
a) 1.8 x 10^24
b) 5.4 x 10^24
c) 3.6 x 10^24
d) 6.02 x 10^23

What is the mass of 1.2 x 10^24 molecules of H2O?
a) 36 g
b) 18 g
c) 6.02 x 10^23 g
d) 2.2 x 10^25 g

2 Na + Cl2 = 2 NaCl is which reaction type?
a) combination
b) decomposition
c) combustion
d) displacement

The actual yield of a chemical reaction is almost always more than the theoretical yield.
a) True
b) False
c) Not enough information
d)

2 H2 + O2=2 H2O How many moles of water can be produced from the reaction of 6 mol H2 and 3 mol O2?
a) 1
b) 2
c) 9
d) 6

2 H2 + O2 = 2 H2O. If 0.5 mol H2 and 0.5 mol O2 react, what is the excess reactant?
a) H2
b) O2
c) H2O
d)

When Al + O2 = Al2O3 is balanced, the coefficient in front of Al2O3 is
a) 1
b) 2
c) 4
d) 6

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